.content{
    width: 100%;
    background-color: red;
    background-image: url("/img/timg.jpg");
    background-repeat: no-repeat;
    background-size:cover;
}

.mainBox{
    width: 400px;
    height: 360px;
    border: 1px solid gainsboro;
    box-shadow: 0 6px 12px rgba(0,0,0,.175);
    position: relative;
    top: 140px;
    left:60%;
    padding: 10px;
    border-radius:2%;
    background-color: white;
}

#codeimg{
    height: 34px;
    border-radius: 5%;
}
.right{
    height: 500px;
    position: relative;
}
#lay_pad{
    padding: 0px !important;
}
#left_ul{
    width: 100%;
    height: 662px;
    /*padding-top: 20px;*/
    background-color: lightseagreen;
    text-align:center;
    font-size: 16px;
}
.left_li{
    line-height: 50px;
    height: 50px;
}
.left_li:hover{
    background-color:slategray; 
    font-size: 18px;

}
a:hover{
     color:turquoise !important; 
}
#H3{
        font-size: 20px; 
        font-weight: 700;
}
.input_t{
    width: 400px !important;
}
.main{
    width: 80%;
    margin-top: 30px;
    margin-left: 50px;
    margin-right: 50px;
    position: absolute;
    /*background-color: red;*/
    left: 0px;
}
.annou_div{
    margin: 10px 160px;
    width:680px;
    position: relative
}
.announ_name{
    font-weight: 700;
    color: dodgerblue;
    font-size: 20px;
}
.announ_time{
    font-size: 12px;
    color:cornflowerblue;
}
.announ_title{
    font-weight: 700px;
    font-size: 20px;
}
.announ_class{
    position: absolute;
    right: 60px;
    top: 0px;
}
.text_pad{
    padding-right: 0px !important;
    font-size: 16px  !important;
    font-weight: 400  !important;
}
.btn-delu{
    width: 120px;
    height: 40px;
    position: relative;
    top: 20px;
    left: -25px;
}
.fron_t{
    margin-left: 20%;
}
/*.marg_div{
    margin-top: 24px;
}*/
.btn_left{
    position: relative;
    left: 200px;
    top: 30px;
}
.lable_text{
    width: 120px;
}
#n_content{
    width: 500px;
    height: 200px;
}
.exit_login{
    position: relative;
    left:90%;
    top:-40px;
}
.exit_login{
    position: relative;
    left:90%;
    top:-40px;
}
#seacher{
   /*margin-top: 10px;*/
    display: inline-block;
    font-size: 30px;
    position: relative;
    top:6px;
}
.input_t{
    display: inline-block;
}
.nav_po{
    position: relative;
    left:50%;
}
.red_text{
    color: red;
}
.red_text1{
    color:white;
}
.th{width: 70px;}
.gron_z{
    position: relative;
    left: -100px;
}
.se_z{
     position: relative;
    z-index: 99999;
    background-color: white;
}
.layui-form-selected dl{
z-index: 99999;
}
img{
    width: 100px;
    height: 100px;
}